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Updated: May 24, 2026

Isolation and Characterization of Human Umbilical Cord-derived Mesenchymal Stem Cells from Preterm and Term Infants
Published on: January 26, 2019
Umbilical cord mesenchymal stem cells suppress B-cell proliferation and differentiation
Nan Che1, Xia Li, Shiliang Zhou
1Department of Immunology and Rheumatology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, Jiangsu, PR China.
Abstract:
Mesenchymal stem cells (MSCs) may be obtained from umbilical cord as an abundant and noninvasive source. However, the immunomodulatory properties of umbilical cord-MSCs (UC-MSCs) were poorly studied. In this study, we aimed to investigate the effects of UC-MSCs on B-cell proliferation and differentiation. UC-MSCs were found to suppress the proliferation of B cells isolated from murine spleen. Moreover, UC-MSCs markedly suppressed B-cell differentiation as shown by the decreased number of CD138+cells and reduced levels of IgM and IgG production in coculture. As revealed by transwell experiments, soluble factors produced by UC-MSCs might be involved in mediating B-cell suppression. The Blimp-1 mRNA expression was suppressed whereas the PAX-5 mRNA expression was induced in coculture. Finally, UC-MSCs modified the phosphorylation pattern of Akt and p38 pathways, which were involved in B-cell proliferation and differentiation. These results may further support the potential therapeutic use of UC-MSCs in treating autoimmune disorders.
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